On This Page
This set of Power Plant Engineering PPE Multiple Choice Questions & Answers (MCQs) focuses on Power Plant Engineering Set 8
Q1 | Which of the following are not taken as operation and maintenance cost in economics of nuclear power plant?
- taxes and insurance
- salaries and wages of staff
- cost of waste disposal
- cost of processing materials
Q2 | What is the overall efficiency of nuclear power plant?
- 20 to 25%
- 25 to 30%
- 30 to 40 %
- 50 to 70 %
Q3 | The land area required for installation of nuclear power plant is
- more than thermal power plant
- less than thermal power plant
- equel to thermal power plant
- depends on type of construction
Q4 | All of the nuclear fuel reserve will be ended in about 400 years.
- true
- false
Q5 | With respect to the load centre which location is suitable for stablishment of nuclear power plant?
- load centre
- near load centre but at reasonable distance
- far away from load centre
- near chemical industries
Q6 | Operating cost of nuclear power plant is less than thermal power plant.
- true
- false
Q7 | What is the role of breaker house in coal feeding?
- to break the coal into smaller pieces
- to separate different sizes of coal
- to separate the light dust from the coal
- to powder the coal
Q8 | 5 FUEL AND ASH HANDLING
- coal ash produced destroys the machinery by entering into them
- coal ash produced annually accounts for thousands of tones
- coal ash can be reutilized for some other purpose
- coal ash affects the health of people working at plants
Q9 | Large amount of coal is transported by
- railway
- sea or river ways
- road transportation
- by airlifting
Q10 | The coal is fed to the furnace through
- conveyor belt
- wagon tipper
- hopper
- crane
Q11 | Which system consumes less power out of all ash handling systems?
- mechanical ash handling system
- pneumatic ash handling system
- hydraulic ash handling system
- steam jet ash handling system
Q12 | What is the function of cyclone separators in pneumatic ash handling system?
- to separate the lighter dust particles
- to force up the movement of ash through pipes or tubes
- to draw out the dust from furnace
- to separate minute coal particles
Q13 | Which medium is used to carry ash in the pneumatic ash handling system?
- conveyor belt
- water trough
- air
- chain belt
Q14 | Which system is noisy out of all the following ash handling systems?
- steam jet ash handling system
- mechanical ash handling system
- pneumatic ash handling system
- hydraulic ash handling system
Q15 | Which medium is used to carry ash in hydraulic system?
- air
- water
- steam
- conveyor
Q16 | What would be the amount of distance that a low pressure system could carry the ash?
- 25m
- 500m
- 150m
- 800m
Q17 | What is the capacity of low pressure hydraulic ash handling system?
- 80 tonnes/hour
- 22 tonnes/hour
- 50 tonnes/hour
- 10 tonnes/hour
Q18 | Which of these terms defines the pressure difference in the furnace?
- draught
- duct
- stack
- chimney
Q19 | 6 DRAUGHT SYSTEM
- Δp = gh(ρa-ρg)
- Δp = gh(ρg-ρa)
- Δp = ghρg
- Δp = gh(ρa+ρg)
Q20 | Which of these is not a type of mechanical draft system for a furnace?
- balanced draft
- induced draft
- forced draft
- actuated draft
Q21 | Stack heat losses can be minimised by
- using low c.v. fuels
- controlling the excess air
- oxygen enrichment of combustion air
- maintaining proper draft in the furnace
Q22 | Which of these accentuates clinkering trouble on furnace grate burning coal?
- low reactivity of carbonised residue containing high proportions of iron and sulphur
- low forced draught and low fuel bed temperature
- thick fire bed and preheated primary air
- all of the mentioned
Q23 | Natural draught produced by a chimney depends upon
- density of chimney gases
- height of chimney
- both ‘density of chimney gases’ and ‘height of chimney’
- none of the mentioned
Q24 | In a furnace employing forced draught compared to induced draught
- the fan operates hot and hence blades are liable to corrosion and erosion
- positive pressure exists in the furnace
- air is sucked in, so air leaks are more and hence furnace efficiency is reduced
- none of the mentioned
Q25 | Which of the following types of the fans has the highest cost?
- centrifugal fans
- axial fans
- primary fans
- gas recirculation fans